"The 'Safe Harbor Deadline' is a statutory timeline that generally denotes the last day for states to certify election results. However, it is not unprecedented for election contests to last well beyond December 8.
"Justice Ginsburg recognized in Bush v. Gore that the date of 'ultimate significance' is January 6, when Congress counts and certifies the votes of the Electoral College. The only fixed day in the U.S. Constitution is the inauguration of the President on January 20 at noon.
"Despite the media trying desperately to proclaim that the fight is over, we will continue to champion election integrity until legal vote is counted fairly and accurately."
- Rudy Giuliani, Attorney for President Trump, and Jenna Ellis, Trump Campaign Senior Legal Adviser and Attorney for President Trump
Donald J. Trump, Trump Campaign Press Release - Trump Legal Team Statement on "Safe Harbor Deadline" Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/347255